https://learn.microsoft.com/zh-tw/dotnet/api/system.configuration.contextinformation.ismachinelevel?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-10.0
ContextInformation.IsMachineLevel Property (System.Configuration) | Microsoft Learn
Gets a value specifying whether the configuration property is being evaluated at the machine configuration level.
property systemconfigurationmicrosoftlearn